Insulator-covering.



W. J. MOBLLER. IINSULATOR COVERING.

APPLIOATIOR rum) mm: a, 1010.

Patented Mar. 19,1912.

UNITED STATES PATENT oEEIoE.

WILLIAM J. MOELLER, or WYOMING,

OHIO, ASSIGIQ'OR TO THE PHILIP CAREY MANIL' FACTURING COMPANY, OFLOCKLAND, OHIO, A CORPORATION OF OHIO.

INSULATOR-COVERING.

Specification of Letters Patent.

Patented Mar. 19, 1912.

Application filed June 6, 1,910. Serial No. 565,322.

To all whom it may concern Be it known that I, WILLIAM J. MOELLER, acitizen of the United States, residing at \Vyoming, in the county ofHamilton and State of Ohio, have invented certain new and usefulImprovements in Insulator- Ooverings, of which the following is aspecification. V

y invention relates to ing for pipes and linings."

The object of my invention is to provide efficient insulating coveringsfor pipes and for lining receptacles such as cooling carsto be filledwith fruits, etc. I

My invention consists of an-article of manufacture comprising an outerlayer of water proof sheet felt, a layer of corrugated asbestos adjacentthereto and producing air cells therebetween, next a layer of heavy.woolen felt, next a layer of corrugated asbestos disposed transverselyto the first mentioned sheet of asbestos producing air cells between thelayer of woolen felt and the corrugated asbestos, additional insulatingcoversheets as desired of woolen felt and corrugated asbestos, andanother outer sheet of water proof felt, the outer layers of water proofsheet felt and the outer edges of the several layers being coated with asuitable mixture of water proof material.

My invention also consists in the several features of novelty set forthand claimed.

In the drawing: Figure 1' is aperspective view showing a portion of myinsulator in flat or board form. Flg. 2 is an end view showing theinvention applicable as a pipe covering.

In the construction of my asbestos coverings asillustrated, an outerlayer of water proof felt 1 is provided. Next a layer of corrugatedasbestos 2 is placed, adjacent thereto, producing a series of air cells3 between said parts 1 and 2. Next a sheet of heavy woolen felt 4 issuperposed thereon. Then a layer of corrugated asbestos 5, havingcorrugations extending transversely to the corrugations of layer 2 issuperposed thereon. Then additional layers of felt and asbestos may beplaced thereon alternating the direction of the'corrugations to produceair cells 3 extending in different directions through said insulator.The several layers are secured together by an adhesive mix ture. Thenumber of layers of material can be varied indefinitely to form aninsulator of such thickness as may be desired,- the outer layers bothbeing of water proof felt 1. This insulator may be formed flat toprovide linings for flat surfaces, as shown in Fig. 1, or it may beformed cir-, cular to, cover pipes, may be made in any shape desired forthe purpose intended. The insulator constructed in accordance with myinvention being provided with numerous air cells produces a thoroughlyefficient non-conductor of heat.

I prefer to asbestos 5 in such maner that the corrugations of each layerwill extend transversely to the corrugations of the adjacent layer toproduce additional strength. The water proof sheet felt 1 is preferablymade of woolen felt saturated with water proof material. The entiresurface of the insulator is preferably covered with a water proofasphalt compound as shown at 6.

My improved insulators are light, durable, efficient and economical toconstruct.

While this insulator is specially intended for use in cooling cars to befilledwith fruits, etc., it can be used for any pur ose of likecharacter. Being a water proo insulating material, it can be used forall kinds of brine insulation.

I claim:

1. As an article'of manufacture, an insulator comprising outer layers ofwater proof as shown in Fig. 2, or

felt, and inner layers of superposed corrugated asbestos and woolenfelt, substantially as set forth.

2. As an article of manufacture, an insulator comprising a series oflayers consisting of an outer layer of water proof felt, a layer ofcorrugated asbestos, a layer of felt, another layer of corruheavy woolengated asbestos, and another outer layer of water proof felt,substantially as set forth. I

3. As an article of manufacture, an insulator comprising outer layers ofwater proof felt, and a plurality of alternate sheets of corrugatedasbestos and heavy woolen felt interposed therebetween, substantially asset forth and for the purposes specified.

4. As an article of manufacture, an insulator comprising outer layers ofwater proof woolen the corrugaof asbestos felt, and inner alternatelayers of felt, and corrugated asbestos, tions in each alternate layerbeing disposed transversely to the corrugations of the other layers ofasbestos, substantially as set forth. v

5. As an article of manufacture, an insu- 5 lator comprising, outerlayers of water prooffelt, and inner layers of superposed corrugatedasbestos and woolen felt covered with water proof asphalt compound,substantially as set forth. h 10 6. As an article of manufacture, aninsulatoricomprising outer layers of water proof felt, i;' 'nneralternate layers of superposed corru ated asbestos and woolen felt, andan adhesive substance adapted to secure said 5 layers togethersubstantiall as set forth.

7. As an article of manu aoture an insuessee? lator comprising outerlayers of felt satu rated with water proof material, inner alternatelayers of superposed woolen felt and corrugated asbestos, thewcorrugations of '20 each alternate layer of'asbestos being disposedtransversely to* the corrugations of the other layers of asbestos, w anadhesive mixture adapted to secure said layers to gether, and a coveringtherefor of water 25 proof asphalt compound, substantially 'as. setforth and for the purposes specified.

Witnesses:

JAMEs N. Ramsay, DUDLEY A. DOM,

WILLIAM J. Mo'ELLEn.

